Background: Sexual minority women are more likely than heterosexual women to have ever experienced intimate partner violence (IPV). Although IPV is associated with sexual risk and poor reproductive health outcomes among US women overall, little is known about whether IPV is related to sexual and reproductive health indicators among sexual minority women in particular. Methods: Baseline data from a prospective intervention trial were collected from women ages 16-29 years at 24 family planning clinics in western PA (n=3,455). Multivariable logistic regression for clustered survey data was used to compare women who have sex with men only (WSM) and women who have sex with women and men (WSWM) on (1) IPV prevalence and (2) sexual and reproductive health behaviors, outcomes, and services use, controlling for IPV. Finally, we tested the interaction of sexual minority status and IPV. Results: WSWM were significantly more likely than WSM to report a lifetime history of IPV (adjusted odds ratio (AOR): 3.00; 95% confidence interval (CI): 2.30, 3.09). Controlling for IPV, WSWM reported higher levels of sexual risk behaviors (e.g., unprotected vaginal and anal sex), male-perpetrated reproductive coercion, unwanted pregnancy, and sexually transmitted infection (STI) and pregnancy testing but less contraceptive care seeking. The association between IPV and lifetime STI diagnosis was greater among WSWM than among WSM. Conclusions: IPV was pervasive and associated with sexual risk and reproductive health indicators among WSWM in this clinic-based setting. Healthcare providers' sexual risk assessment and provision of sexual and reproductive health services should be informed by an understanding of women's sexual histories, including sex of sexual partners and IPV history, in order to help ensure that all women receive the clinical care they need.
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